1986 IUCN red list of threatened animals - IUCN Conservation Monitoring Centre. (International Union for Conservation of Nature and Natural Resources, 1986)

1988 IUCN red list of threatened animals (1988)

1988 plan amendments to the California Desert Conservation Area plan of 1980 : decision record - United States. Bureau of Land Management. (California Desert District, Bureau of Land Management, U.S. Dept. of the Interior, 1990)

1990 IUCN red list of threatened animals (1990)

1994 IUCN red list of threatened animals (1994)

The 25 largest un-fragmented wilderness Areas in the Arctic - Zöckler, Christoph (WWF, 2001)

Abbreviated guide to pronunciation and etymology of scientific names for North American land mammals north of Mexico - Christiansen, Peder G. (Texas Tech University Press, 1993)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1888)

Abstract of the proceedings of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1917)

Advances in the study of mammalian behavior - American Society of Mammalogists. (American Society of Mammalogists, 1983)

The age of mammals in Europe, Asia and North America - Osborn, Henry Fairfield, 1857 -1935 (The Macmillan company, 1910)

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Aguas continentales y diversidad biológica de México - Arriaga Cabrera, Laura (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2000)

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American animals; a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page & Co, 1902)

American animals; a popular guide to the mammals of North American north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page & co, 1913)

American animals; a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page & Co, 1905)

American animals a popular guide to the mammals of North America, north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (W. Briggs, 1902)

American animals : a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page, 1917)

American animals; a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page, 1922)

American animals; a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page & Company,, 1920)

American animals: a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species - Stone, Witmer. 1866 -1939 (Doubleday, Page & Co, 1904)

American big game in its haunts; the book of the Boone and Crockett club - Grinnell, George Bird, 1849 -1938 (Forest and stream publishing company, 1904)

The American journal of science (J.D. & E.S. Dana, 1906)

The American journal of science (J.D. & E.S. Dana, 1915)

The American journal of science (J.D. & E.S. Dana, 1916)

The American journal of science (J.D. & E.S. Dana, 1920)

The American journal of science (J.D. & E.S. Dana, 1921)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1902)

The American Museum journal - American Museum of Natural History (American Museum of Natural History, 1917)

The American natural history; a foundation of useful knowledge of the higher animals of North America - Hornaday, William T. (William Temple), 1854 -1937 (C. Scribner's Sons, 1904)

The American natural history : a foundation of useful knowledge of the higher animals of North America - Beard, J. Carter (James, Carter), 1837 -1913 (G. Newnes, 1904)

The American natural history; a foundation of useful knowledge of the higher animals of North America - Hornaday, William T. (William Temple), 1854 -1937 (C. Scribner's Sons, 1914)

The American natural history : a foundation of useful knowledge of the higher animals of North America - Hornaday, William T. (William Temple), 1854 -1937 (C. Scribner's sons, 1914)

American pronghorn antelope in the Yellow Water Triangle, Montana : a study of social distribution, population dynamics, and habitat use - Pyrah, Duane B. (Wildlife Division, Montana Dept. of Fish, Wildlife, and Parks in cooperation with Bureau of Land Management, U.S. Dept. of the Interior, Billings, MT, 1987)

Anales de la Sociedad Científica Argentina - Sociedad Científica Argentina ([Sociedad Científica Argentina], 1936)

Anales del Museo Nacional de Buenos Aires - Museo Nacional de Buenos Aires. (Impr. de Juan A. Alsina, 1895)

Anales del Museo Nacional de Historia Natural de Buenos Aires - Museo Nacional de Historia Natural de Buenos Aires. (Impr. y Casa Editora "Juan A. Alsina", 1911)

An analysis of the wildlife and fish situation in the United States : 1989-2040 - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

Animal Damage Control Program : final environmental impact statement - United States. Bureau of Land Management. (United States Department of Agriculture, Animal and Plant Health Inspection Service, 1994)

Animal Damage Control Program : final environmental impact statement - United States. Bureau of Land Management. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, 1997)

Animal figures in the Maya codices - Allen, Glover M. (Glover Morrill), 1879 -1942 (The Museum, 1910)

Animal keepers' forum - American Association of Zoo Keepers (American Association of Zoo Keepers, 1991)

Animal keepers' forum - American Association of Zoo Keepers (American Association of Zoo Keepers, 2000)

Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada - Grinnell, Joseph, 1877 -1939 (University of California Press, 1924)